1Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
2Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
3Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
4Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
Objective(s): In the present study, we investigated the potential anti-nociceptive activity and acute anti-inflammatory effect of a synthetic quinoline compound (2-(4-Methoxyphenyl)benzo[h]quinoline-4-carboxylic acid, QC), possessing structural elements of both naproxen and tomoxiprole drugs. Materials and Methods: The anti-nociceptive activity of QC was evaluated using chemical- and thermal-induced nociception models and its acute anti-inflammatory effect was evaluated by xylene-induced ear edema test in mice. Results: QC displayed a dose dependent effect in both acute anti-nociceptive tests (writhing and hot plate). This compound at dose of 6.562 mg/kg showed a high anti-nociceptive effect near equal to diclofenac 5 mg/kg. It also showed high anti-inflammatory effects (less than 6.562 mg/kg) comparable to those of reference drugs diclofenac (5 mg/kg) and celecoxib (100 mg/kg). Docking study showed that this quinoline derivative could inhibit COX-2 enzyme strongly. Conclusion: QC showed high anti-nociceptive and anti-inflammatory effects comparable to reference drugs and can exert its anti-nociceptive and anti-inflammatory activities through COX-2 inhibition.
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